AutoComm: A Framework for Enabling Efficient Communication in Distributed Quantum Programs

Understand

Distributed quantum computing (DQC) is a promising approach to extending the computational power of near-term quantum devices.

• However, the non-local quantum communication between quantum devices is much more expensive and error-prone than the local quantum communication within each quantum device.
• Previous work on the DQC communication optimization focus on optimizing the communication protocol for each individual non-local gate and then adopt quantum compilation designs which are designed for local multi-qubit gates (such as controlled-x or CX gates) in a single quantum computer.
• The communication patterns in distributed quantum programs are not yet well studied, leading to a far-from-optimal communication cost.